IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 4: Responding to Shifting Water Resources : Do rainwater tanks punch above their weight? the use of a probabilistic distributed demand model to ...
Do rainwater tanks punch above their weight? the use of a probabilistic distributed demand model to estimate the contribution of decentralised water sources to supply security
Author : Russell Beatty1, Ian Varley1, Pavel Kozarovski2
There has been significant debate recently about the contribution of rainwater tanks to water supply security. Traditional thinking was that in the middle of a drought when the water was needed, the tanks were all empty. In the rawest form of economic analysis, the total cost of storage in dams and tanks is directly compared with tanks understandably coming off second best. In recent years, work has shown that rainwater tanks can make a contribution to supply security because of their remoteness from surface water supply catchments and the responsiveness of their roof catchments. In this paper, the contribution made by rainwater tanks to supply security is examined from a total system perspective using a probabilistic distributed demand model. The total cost of providing water supply is compared for a hypothetical city with and without rainwater tanks. The cost-effectiveness of rainwater tanks is estimated by comparing with and without cases.
File Size : 406,125 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 4: Responding to Shifting Water Resources
Date Published : 01/07/2011
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